Endocrine Abstracts

Introduction: Testicular morphology and immunohistochemistry have never been reported in genetically documented adult patients with 5α-reductase type 2 deficiency (5α-R2 deficiency).Case report: We describe the testicular histopathology of a 17-year-old XY female with primary amenorrhea, failure of pubertal breast development, virilization, clitoromegaly, and bilateral cryptorchidism (testes located in the inguinal canals). The diagnosis of 5&#...

Aims: HDL have many diverse functions. The goal of this study was to determine the differential effect of HDL cholesterol (HDL-C) and apolipoprotein A-I (apoA-I) on the development of type 2 diabetes (T2D). In addition, this study determined the association between the ratio of HDL-C to apoA-I (HA) and incident T2D.Methods: A total of 27 988 subjects with impaired fasting glucose (IFG) (18 266 men and 9722 women) aged 21 to 91 years (mean age 43.5 years)...

Context: Insulin-like peptide three (INSL3) is a testicular hormone, secreted by Leydig cells, during fetal life, in newborns, and after puberty. These 3 phases of testicular activation are impaired in CHH.Objective: To evaluate in a single center circulating INSL3 in a significant series of men with CHH in order to asses the consequences of pre- and postnatal gonadotropin deficiency, to specify the INSL3 regulation by gonadotropins and to evaluate the p...

Introduction: Diabetes is one of the most challenging health problems in the world. The degree of prevention or control of complications directly affects patients’ mortality. Therefore, it is crucial to control the risk factors of diabetes. We investigated the prevalence, treatment, and control of diagnosed diabetes in Korean adults from 1998 to 2010.Methods: The Korean Ministry of Health and Welfare conducted the Korean National Health and Nutritio...

Overt hypothyroidism (OH) and more controversially subclinical hypothyroidism (SCH) are associated with abnormal lipid metabolism and endothelial dysfunction under fasting conditions. Little data exists regarding the metabolic and vascular effects of OH or SCH under postprandial conditions.We aimed to characterize postprandial metabolism with emphasis on intestinally derived lipoproteins, HDL-cholesterol (HDL-C) and endothelial function in patients with ...

Drospirenone (DRSP) is a potent antimineralocorticoid with progestative and moderate antiandrogenic properties. We have previously shown that DRSP exerts a potent antiadipogenic activity in murine and human preadipocytes through specific antagonism of the MR. In the present study responses to DRSP were investigated in a model of diet-induced obesity for 12 weeks. Female 10-week-old C57bl6 mice were fed with normal chow or a high fat diet (HF, containing 45% fat by calories). M...

Context: Kallmann syndrome (KS) is a developmental disease associating congenital hypogonadotropic hypogonadism (CHH) and sense of smell impairment owing to olfactory structures (OS) aplasia/hypoplasia. Although rhinencephalic MRI allows to detect specific KS OS abnormalities useful to discriminate KS from normosmic CHH (nCHH), this technique is not efficient enough to study anterior skull bone structures.Objectives: To search for specific anterior skull...

Hypothesis: Exogenous kisspeptin-10 (Kp10) enhances pulsatile LH. Research strategy: A first-in-man dosing study of kp10 was first performed. Healthy volunteers and hypogonadal patients were subsequently infused with kp10. Dose titration study Rapid increases in LH with clear dose-dependency (P<0.0001) were observed in healthy men (n=6), with the 0.3 and 1 µg/kg doses being maximally stimulatory (P<0.01). Effect of sex-steroid milieu: LH respo...

Introduction: TAC3/TACR3 mutations have been reported in normosmic congenital hypogonadotropic hypogonadism (nCHH). In the absence of animal models, studies of human neuroendocrine phenotypes associated with neurokinin B and NK3R receptor dysfunction can help to decipher the pathophysiology of this signaling pathway. Our objective was to characterize novel TACR3 mutations and to analyze neuroendocrine profiles in nCHH patients with TAC3/TACR3 biallelic mut...

Context: Mitotane due to its adrenolytic action is highly effective in long-term management of ACTH-dependent Cushing’s syndrome (CS). However, the slow onset of its anticortisolic effect makes its use problematic in severe CS, when very rapid therapeutic response is required. Association with metyrapone and ketoconazole, rapidly acting steroidogenesis inhibitors, could warrant CS control while waiting for the full efficiency of mitotane and thus avoid urgently performed ...